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Geo sea / Cortex / Economy first / OBSERVED BUILD

Standard geo sea

The role's default economy-first play: bot lab then shipyard in the cove, quick frigate/submarine/destroyer navy to contest sea and hold the coast, transitioning into whatever the sea fight needs.

Usually shipyard in the cove (98%)

#naval #eco · 897 distinct matches · 97 players · 83% of Cortex Geo sea games · team won 52% of 1005 · Recently observed

HOW TO PLAY IT

Key timing: Shipyard by 3:18

  1. Open 3 mex, wind and solar, then Bot Lab.
  2. Get a BP and costal torpedo launcher up before the Shipyard.
  3. Put up Shipyard once you can defend it.
  4. Push out "submarine" and "frigate" to contest the sea.
  5. Add geothermal to fund the fleet transition into "destroyer", "missile corvette".

Phase by phase

TYPICAL OF ITS 897 GAMES
  1. 1
  2. 2
  3. 3
  4. 4
PLAY THE OPENING

Follow the example game's first 6:00 step by step: what to build now, what comes next, and where it goes. At 1× it keeps pace with your own game.

  1. 1

    Up to the Bot Lab

    Economy
    • Metal Extractor3Mex
    • Wind Turbine3Wind
    Order
    1. Bot LabBot Lab after 3 mex, 3 winddone ~1:12, middle half 1:06–1:26

    Some games also: wind for allies (49%)

    By 0:55 in all: 3 mex · 3 wind

    The example game in this phase · 3 steps
    1. Mex ×3
    2. Wind ×3
    3. Bot LabBot Labdone 1:02 · typical 1:12
  2. 2

    Bot Lab to Shipyard

    Economy
    • Metal Extractor1Mex
    • Wind Turbine2Wind
    Order
    1. ShipyardShipyard after 4 mex, 5 wind, 1 energy storagedone ~3:17, middle half 3:03–3:33
    Builders
    • Construction Bot3 Con bot
    • Graverobber2 Graverobber
    Army
    • Grunt1 Grunt

    Some games also: con turret (47%) · trasher (39%) · energy storage (34%) · wind for allies (33%)

    By 2:52 in all: 4 mex · 5 wind · 1 energy storage

    The example game in this phase · 19 steps
    1. Wind
    2. GraverobberGraverobber
    3. Wind
    4. Construction BotCon bot
    5. Wind
    6. Construction BotCon bot
    7. Con turret
    8. Wind
    9. GraverobberGraverobber
    10. Energy storage
    11. GruntGrunt ×2
    12. Mex
    13. GruntGrunt ×3
    14. Construction BotCon bot ×2
    15. Wind
    16. Mex
    17. GraverobberGraverobber
    18. Wind
    19. ShipyardShipyarddone 3:31 · typical 3:17
  3. 3

    Shipyard to 5:00

    Economy
    • Metal Extractor4Mex
    Builders
    • Construction Ship1 Con ship
    Army
    • Riptide2 Frigate
    • Orca1 Submarine
    Other
    • Radar Tower1 Radar Tower

    Some games also: Guard (50%) · wind (48%) · missile corvette (47%) · destroyer (46%) · gunboat (41%)

    By 5:00 in all: 8 mex · 6 wind · 1 energy storage · 1 con turret

    The example game in this phase · 27 steps
    1. Converter
    2. Wind
    3. Converter
    4. Mex
    5. Construction ShipCon ship
    6. Wind
    7. Radar TowerRadar Tower
    8. Converter
    9. HerringMissile corvette
    10. Wind
    11. GuardGuard
    12. RiptideFrigatedone 4:20 · typical 4:35
    13. Converter
    14. Wind
    15. Mex
    16. GuardGuard
    17. Wind ×2
    18. SupporterGunboat
    19. Wind
    20. GuardGuard
    21. Wind
    22. Mex
    23. Wind
    24. RiptideFrigate
    25. Wind
    26. GuardGuard
    27. Wind ×2
  4. 4

    5:00 to 10:00

    Economy
    • Metal Extractor2Mex
    • Wind Turbine8Wind
    • Energy Converter1Converter
    Builders
    • Construction Turret1 Con turret
    • Death Cavalry2 Death Cavalry
    • Construction Ship1 Con ship
    Army
    • Guard2 Guard
    • Riptide5 Frigate
    • Herring2 Missile corvette
    Other
    • Naval Radar / Sonar Tower2 Naval Radar / Sonar Tower

    Some games also: geo (48%) · Thistle (42%) · submarine (33%)

    By 10:00 in all: 10 mex · 15 wind · 1 geo · 4 converter · 1 energy storage · 2 con turret

    The example game in this phase · 87 steps
    1. Wind
    2. GuardGuard
    3. Wind
    4. SupporterGunboat
    5. Wind
    6. SupporterGunboat
    7. Wind
    8. OppressorDestroyerdone 6:35 · typical 5:51
    9. Aircraft PlantAircraft Plantdone 6:22
    10. Geothermal PowerplantGeodone 7:40 · typical 8:00
    11. HerculesLight transport
    12. Death CavalryDeath Cavalry
    13. HerringMissile corvette
    14. RiptideFrigate ×2
    15. OppressorDestroyer
    16. GuardGuard
    17. Death CavalryDeath Cavalry
    18. JellyfishJellyfish
    19. Mex
    20. HerringMissile corvette
    21. RiptideFrigate ×2
    22. Mex
    23. Radar TowerRadar Tower
    24. Construction ShipCon ship ×2
    25. Converter
    26. OppressorDestroyer
    27. Converter
    28. Death CavalryDeath Cavalry
    29. Converter
    30. HerringMissile corvette
    31. RiptideFrigate ×2
    32. Converter
    33. OppressorDestroyer
    34. Converter
    35. Radar TowerRadar Tower
    36. OppressorDestroyer
    37. Converter
    38. GuardGuard
    39. OppressorDestroyer
    40. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    41. Construction ShipCon ship ×2
    42. GuardGuard
    43. Naval Construction Turret
    44. Death CavalryDeath Cavalry
    45. Advanced Bot LabAdvanced Bot Labdone 12:46
    46. Mex
    47. HerringMissile corvette
    48. Tidal
    49. Naval Construction Turret
    50. RiptideFrigate ×2
    51. GuardGuard
    52. Tidal
    53. OppressorDestroyer
    54. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    55. Tidal ×4
    56. Advanced Construction BotT2 con bot
    57. SupporterGunboat ×4
    58. Tidal
    59. HerringMissile corvette
    60. Advanced Metal ExtractorT2 mexdone 14:12
    61. HerringMissile corvette
    62. Tidal ×2
    63. HerringMissile corvette
    64. Tidal
    65. Mex
    66. Tidal
    67. HerringMissile corvette
    68. Tidal
    69. Con turret
    70. Metal storage
    71. Tidal ×2
    72. HerringMissile corvette
    73. Tidal ×2
    74. Mex
    75. Naval Construction Turret
    76. Tidal
    77. Advanced Metal ExtractorT2 mex
    78. Tidal
    79. Naval Construction Turret
    80. Tidal
    81. TwitcherTwitcher
    82. Advanced ShipyardAdvanced Shipyardnot finished by 15:00
    83. Tidal
    84. Mex
    85. Tidal
    86. TwitcherTwitcher
    87. Tidal

Counts are medians over the build's games: half of them build more, half fewer. The example game is TheSituation's (49 OS, 18/09/2026); pick another.

Team trades

IN AT LEAST 30% OF ITS GAMES

You hand over

  • Wind Turbine2 Wind to Airfirst at 1:47 · in 73% of games

You get

  • Finch1 Finch from Airfirst at 1:51 · in 82% of games
  • Hercules1 Light transport from Airfirst at 2:00 · in 75% of games
  • Advanced Construction Bot1 T2 con bot from Techfirst at 7:44 · in 89% of games

How it plays out

Typical game of this build, running totals by minute

Metal produced

010k20k30k
0:005:0010:0015:00

metal

Enemy metal destroyed

05k10k
0:005:0010:0015:00

metal

Own metal lost

02.5k5k7.5k
0:005:0010:0015:00

metal

1005 games.

Show as table
ByMetal produced: This buildEnemy metal destroyed: This buildOwn metal lost: This build
1:0039700
2:0092800
3:00157100
4:002914051
5:00411013052
6:005467440232
7:006953931547
8:0086241570891
9:001051024401344
10:001264436272050
11:001523749202921
12:001815364203827
13:002150674134511
14:002505786485441
15:002879297896342
WHAT THE NUMBERS SAY

Standard Cortex geo sea sits at an even 50% win rate, trading a slower start for a big resource lead by 15:00.

  • + Metal produced hits 28451 by 15:00, well above both front roles
  • + Own metal lost stays far below enemy metal destroyed at every checkpoint
  • − Only 50% team win rate, the lowest of these six builds
  • − T2 factory only completes in 40% of games by 12:53
THE EXAMPLE YOU ARE READING

TheSituation

48.8 OS · 18/09/2026

Open source match ↗

0 received units
1 metal received · 69 energy received

Allied construction assistance is unknown. Timings are observations, not a promise of solo reproducibility.

Typical milestones

Bot Lab1:12Middle 50%: 1:06–1:26 · n=999
Shipyard3:17Middle 50%: 3:03–3:33 · n=1000
Orca4:19Middle 50%: 3:53–4:59 · n=686
Riptide4:35Middle 50%: 4:08–5:20 · n=977
Oppressor5:51Middle 50%: 5:08–6:32 · n=912
Geothermal Powerplant8:00Middle 50%: 7:01–8:58 · n=605
Advanced Metal Extractor9:22Middle 50%: 8:45–10:10 · n=861

Played most by

sirniho119games of this buildOptimusprimenutt78games of this buildSHOGVN74games of this buildPRO_Rerory46games of this buildhihimik41games of this build